第12329题 单选
以下Python列表调用insert(-2,6)方法后的运行结果是?
ls = [23, 19, 30, 87, 42, 58, 99, 14]
ls.insert(-2, 6)
A

[23, 19, 6, 30, 87, 42, 58, 99, 14]

B

[23, 19, 30, 87, 42, 58, 6, 99, 14]

C

[23, 19, 30, 87, 42, 58, -2, 99, 14]

D

[23, 19, 30, 87, 42, 58, 99, 6, 14]

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